Car comparison

Infiniti Q70 · Facelift 2014 3.7 V6vsJaguar XJ (X351) · Facelift 2015 3.0 V6

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Infiniti Q70 · Facelift 2014

3.7 V6

320 hp3696 ccGasolineRWDAutomaticNaturally aspiratedSedan2014-2018
VS

Jaguar XJ (X351) · Facelift 2015

3.0 V6

340 hp2995 ccGasolineAWDAutomaticSuperchargedSedan2015-2018

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

Jaguar XJ (X351) Facelift 2015 3.0 V6

  • Most powerful
    340 hp
    254 kW
  • Highest torque
    450 Nm
    332 lb-ft
  • Lowest combined fuel consumption
    9.8 L/100 km
    24.0 mpg US
    28.8 mpg UK
  • Lowest city consumption
    13.6 L/100 km
    17.3 mpg US
    20.8 mpg UK
  • Lowest highway consumption
    7.6 L/100 km
    30.9 mpg US
    37.2 mpg UK
  • Best estimated range
    816 km
    507 mi
  • Best economy score
    81/100
  • Best practicality score
    78/100

Infiniti Q70 Facelift 2014 3.7 V6

  • Quickest 0-100 km/h
    6.2 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,751 kg
    3,860 lb
  • Best power-to-weight
    183 hp/t
    136 kW/t
    5.5 kg/hp
  • Best overall score
    68/100
  • Best performance score
    64/100

Specification comparison

Specification comparison
ModelInfinitiQ70Facelift 20143.7 V6JaguarXJ (X351)Facelift 20153.0 V6
Power
320hp239kW
340hp254kW
Torque
360Nm266lb-ft
450Nm332lb-ft
Curb weight
1,751kg3,860lb
1,865kg4,112lb
Gross weight
2,310kg5,093lb
2,430kg5,357lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
63.6s99% target: 262 km/h / 163 mph
Calculated
68.1s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
6.2s
6.4s
0-200 km/h
18.9s
Calculated
20.5s
Calculated
0-60 mph
5.9s
Calculated
6.1s
Calculated
Fuel consumption
10.8L/100 km21.8mpg US26.2mpg UK
9.8L/100 km24mpg US28.8mpg UK
Fuel consumption city
15.8L/100 km14.9mpg US17.9mpg UK
13.6L/100 km17.3mpg US20.8mpg UK
Fuel consumption highway
7.9L/100 km29.8mpg US35.8mpg UK
7.6L/100 km30.9mpg US37.2mpg UK
Quarter mile
14.1s
Calculated
14.3s
Calculated
Power-to-weight
183hp/t136kW/t83hp/1000 lb
Calculated
182hp/t136kW/t83hp/1000 lb
Calculated
Torque-to-weight
206Nm/t138lb-ft/ton
Calculated
241Nm/t161lb-ft/ton
Calculated
Estimated range
741km460mi
Calculated
816km507mi
Calculated
Displacement
3,696cc226cu in
2,995cc183cu in
Length
4,980mm196in
5,130mm202in
Width
1,845mm73in
1,899mm75in
Height
1,493mm59in
1,460mm57in
Wheelbase
2,900mm114in
3,032mm119in
Front track
1,575mm62in
1,626mm64in
Rear track
1,570mm62in
1,604mm63in
Trunk volume
500L
-
Doors
4
4
Seats
5
5
Fuel tank
80L
80L
CO2 emissions-
234g/km

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Infiniti Q70 Facelift 2014 3.7 V6Jaguar XJ (X351) Facelift 2015 3.0 V6PowerTorque
  • Infiniti Q70 Facelift 2014 3.7 V6: Power / Torque
  • Jaguar XJ (X351) Facelift 2015 3.0 V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
InfinitiQ70Facelift 20143.7 V67,000 rpm5,200 rpm7,250 rpm
JaguarXJ (X351)Facelift 20153.0 V66,500 rpm3,500-5,000 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricInfinitiQ70Facelift 20143.7 V6JaguarXJ (X351)Facelift 20153.0 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.9 s
6.1 s
0-100 km/h
0-62 mph
6.2 s
6.4 s
0-200 km/h
0-124 mph
18.9 s
20.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.6 s
2.6 s
330 ft
101 m
6.4 s
6.5 s
1/8 mile
201 m
9.5 s
9.6 s
1000 ft
305 m
12.0 s
12.2 s
1/4 mile
402 m
14.1 s
14.3 s
Trap speed
1/4 mile
402 m
173 km/h
108 mph
169 km/h
105 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
InfinitiQ70Facelift 20143.7 V6
320 hp
239 kW
JaguarXJ (X351)Facelift 20153.0 V6
340 hp
254 kW

Jaguar XJ (X351) Facelift 2015 3.0 V6 has 20 hp more than Infiniti Q70 Facelift 2014 3.7 V6.

The biggest power difference is between Infiniti Q70 Facelift 2014 3.7 V6 and Jaguar XJ (X351) Facelift 2015 3.0 V6: 20 hp (15 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
InfinitiQ70Facelift 20143.7 V6
360 Nm
266 lb-ft
JaguarXJ (X351)Facelift 20153.0 V6
450 Nm
332 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
InfinitiQ70Facelift 20143.7 V6
1,751 kg
3,860 lb
JaguarXJ (X351)Facelift 20153.0 V6
1,865 kg
4,112 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
InfinitiQ70Facelift 20143.7 V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
JaguarXJ (X351)Facelift 20153.0 V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
InfinitiQ70Facelift 20143.7 V66.2 s
JaguarXJ (X351)Facelift 20153.0 V66.4 s

Although Jaguar XJ (X351) Facelift 2015 3.0 V6 has more power, Infiniti Q70 Facelift 2014 3.7 V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Infiniti Q70 Facelift 2014 3.7 V6 and Jaguar XJ (X351) Facelift 2015 3.0 V6: 0.2 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
InfinitiQ70Facelift 20143.7 V6
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
JaguarXJ (X351)Facelift 20153.0 V6
9.8 L/100 km
24.0 mpg US
28.8 mpg UK

The biggest fuel consumption difference is between Jaguar XJ (X351) Facelift 2015 3.0 V6 and Infiniti Q70 Facelift 2014 3.7 V6: 1.0 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
InfinitiQ70Facelift 20143.7 V6
183 hp/t
136 kW/t
5.5 kg/hp
JaguarXJ (X351)Facelift 20153.0 V6
182 hp/t
136 kW/t
5.5 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
InfinitiQ70Facelift 20143.7 V6
741 km
460 mi
JaguarXJ (X351)Facelift 20153.0 V6
816 km
507 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
InfinitiQ70Facelift 20143.7 V6
320 hp
239 kW
6.2 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
JaguarXJ (X351)Facelift 20153.0 V6
340 hp
254 kW
6.4 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
InfinitiQ70Facelift 20143.7 V6
Power
320 hp
239 kW
0-100 km/h6.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,980 mm
196.1 in
Height
1,493 mm
58.8 in
JaguarXJ (X351)Facelift 20153.0 V6
Power
340 hp
254 kW
0-100 km/h6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk-
Length
5,130 mm
202.0 in
Height
1,460 mm
57.5 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
InfinitiQ70Facelift 20143.7 V6
Power
320 hp
239 kW
0-100 km/h6.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
JaguarXJ (X351)Facelift 20153.0 V6
Power
340 hp
254 kW
0-100 km/h6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.8 L/100 km
24.0 mpg US
28.8 mpg UK

Jaguar XJ (X351) Facelift 2015 3.0 V6 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
InfinitiQ70Facelift 20143.7 V6
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
6.2 s
JaguarXJ (X351)Facelift 20153.0 V6
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
6.4 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
InfinitiQ70Facelift 20143.7 V6
183 hp/t
136 kW/t
5.5 kg/hp
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
JaguarXJ (X351)Facelift 20153.0 V6
182 hp/t
136 kW/t
5.5 kg/hp
9.8 L/100 km
24.0 mpg US
28.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleInfinitiQ70Facelift 20143.7 V6JaguarXJ (X351)Facelift 20153.0 V6
Power
320 hp
239 kW
340 hp
254 kW
Torque
360 Nm
266 lb-ft
450 Nm
332 lb-ft
Acceleration
6.2 s
6.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,751 kg
3,860 lb
1,865 kg
4,112 lb
Fuel consumption
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,980 mm
196.1 in
Height
1,493 mm
58.8 in
Doors/seats
4 doors
5 seats
Trunk-
Length
5,130 mm
202.0 in
Height
1,460 mm
57.5 in
Range score
741 km
460 mi
816 km
507 mi
CO2 score
-
234 g/km
Trunk score
500 L
17.7 cu ft
-
Power-to-weight score
183 hp/t
136 kW/t
5.5 kg/hp
182 hp/t
136 kW/t
5.5 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleInfiniti Q70 Facelift 2014 3.7 V6Jaguar XJ (X351) Facelift 2015 3.0 V6
Consumption10.8 L/100 km21.8 mpg US26.2 mpg UK9.8 L/100 km24 mpg US28.8 mpg UK
Cost / 100 km18.90 LC100 km17.15 LC100 km
Cost / 100 mi30.42 LC100 mi27.60 LC100 mi
Annual fuel used1,620 L428 US gal356 UK gal1,470 L388 US gal323 UK gal
Annual fuel cost2,835 LC/year2,573 LC/year

Head-to-head comparisons

Infiniti Q70 Facelift 2014 3.7 V6

  • Is 114 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Has 0 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Best power-to-weight ratio

Cons

  • Lowest power
  • Highest combined fuel consumption

Jaguar XJ (X351) Facelift 2015 3.0 V6

  • Has 20 hp more
  • Has 90 Nm more
  • Uses 1.0 L/100 km less fuel
  • Has 76 km (47 mi) more estimated range

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Infiniti Q70 3.7 V6
Jaguar XJ (X351) 3.0 V6
Compare selected cars
2 vehicles selected

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Infiniti Q70 · Facelift 2014 3.7 V6 vs Jaguar XJ (X351) · Facelift 2015 3.0 V6 - car comparison - FastVsFaster